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2 Nukleonika

2 2007

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The influence of Co and V substitution on structural properties of FINEMET-type alloys

Szumiata T., Gawroński M., Brzózka K., Górka B., Sovák P., Pavlík P.

Nukleonika

2007

Vol. 52, supl. 1

21-28

The effect of addition of Co and V on the hyperfine parameters of amorphous as well as nanocrystalline Finemet-type alloys has been studied by means of transmission Mössbauer spectrometry. It was stated that these elements infiltrate into crystalline grains in the course of crystallization, what causes alteration in structure. Different evolution of magnetic hyperfine field is reported in both cases and analyzed. In the series of alloys substituted by vanadium, the substantial paramagnetic component attributed to iron-poor regions in the amorphous remainder was found.

Magnetic texture determination by CEMS with polarized radiation

Olszewski K., Szymański K., Satuła D., Dobrzyński L.

Nukleonika

2007

Vol. 52, supl. 1

17-19

CEMS measurements of a 57Fe foil were performed with unpolarized and polarized radiation. It is shown that the experimental results permit determination of important characteristics of a magnetic texture, an average square of the cosine((gamma-m)2) and an average cosine (gamma-m).